NEW YORK — Facebook, the social network that changed “friend” from a noun to a verb, is expected to file this week to sell stock on the open market. Its debut is likely to be the most talked-about initial public offering since Google in 2004.

The Menlo Park, Calif.-based company expects to raise as much as $10 billion, though some accounts say it could be less than that. At $10 billion, the company would be valued at $75 billion to $100 billion.